> It happened again right now, on another G40-30 Lenovo laptop, running > Windows 10 and Ubuntu 16.04, both in legacy mode. As soon as we inserted > an Ubuntu 17.10 live USB, the boot setup had the USB listed twice. One > in legacy and another as EFI (I repeat, the OSs on that laptop are > installed in legacy mode). By selecting to boot the live USB which was > listed as EFI, it booted fine. We did not install the new OS, but after > shutting down the laptop, the BIOS refused to save any changes and also > refused to read that same USB flash drive in boot options. There has to > be something very seriously wrong here.
Given the evidence of this to date, I would not suggest that anyone do further investigation on this problem with their own hardware that would require expensive professional recovery. A probable fix is in progress for the kernel package. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1734147 Title: Ubuntu 17.10 corrupting BIOS - many LENOVO laptops models Status in linux package in Ubuntu: Confirmed Status in linux source package in Artful: Confirmed Bug description: Hi all, Basically on Lenovo Y50-70 after installing Ubuntu 17.10, many users reported a corrupted BIOS. It's not possible to save new settings in BIOS anymore and after rebooting, the system starts with the old settings. Moreover (and most important) USB booting is not possible anymore since USB is not recognized. It's very serious, since our machines do not have a CDROM. Lenovo forums at the moment are full of topics regading this issue. Thank you!! #### UPDATE (01/12/2017) #### LENOVO machines affected so far (please add your affected model to this list): Lenovo B40-70 Lenovo B50-70 Lenovo Flex-10 Lenovo G40-30 Lenovo G50-70 Lenovo G50-80 Lenovo S20-30 Lenovo U31-70 Lenovo Y50-70 Lenovo Y70-70 Lenovo Yoga Thinkpad (20C0) Lenovo Yoga 2 11" - 20332 Lenovo Z50-70 Lenovo Z51-70 The bug also affects Acer Aspire E5-771G. --- Temporary workaround: https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Y50-70-BIOS-Can-t -Save-Settings-Or-Exit/m-p/3853208#M157885 --- result from apport-collect 1734147: --- ApportVersion: 2.20.7-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: tob 1608 F.... pulseaudio /dev/snd/controlC0: tob 1608 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 17.10 InstallationDate: Installed on 2017-10-22 (37 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) MachineType: LENOVO 20378 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-17-generic root=UUID=7def04d3-7336-44b2-a084-2415f9dc2328 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8 RelatedPackageVersions: linux-restricted-modules-4.13.0-17-generic N/A linux-backports-modules-4.13.0-17-generic N/A linux-firmware 1.169 Tags: artful wayland-session Uname: Linux 4.13.0-17-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/12/2015 dmi.bios.vendor: LENOVO dmi.bios.version: 9ECN43WW(V3.03) dmi.board.asset.tag: No Asset Tag dmi.board.name: Lenovo Y50-70 dmi.board.vendor: LENOVO dmi.board.version: 00000000Not Defined dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Y50-70 dmi.modalias: dmi:bvnLENOVO:bvr9ECN43WW(V3.03):bd08/12/2015:svnLENOVO:pn20378:pvrLenovoY50-70:rvnLENOVO:rnLenovoY50-70:rvr00000000NotDefined:cvnLENOVO:ct10:cvrLenovoY50-70: dmi.product.family: IDEAPAD dmi.product.name: 20378 dmi.product.version: Lenovo Y50-70 dmi.sys.vendor: LENOVO --- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734147/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
